diff --git a/Cargo.lock b/Cargo.lock
index c1c38a94..67464632 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -5000,9 +5000,9 @@ dependencies = [
 
 [[package]]
 name = "test-harness"
-version = "0.2.0"
+version = "0.3.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f5d0ff0a84ad859ae43ad18209c163f739587027138f6e2ce4596a761b9c8352"
+checksum = "ae861f7d521762a2e5524ceeb3a518fab2c06c25e217a1d7270b8c5e158c141b"
 dependencies = [
  "proc-macro2",
  "quote",
diff --git a/test-support/Cargo.toml b/test-support/Cargo.toml
index 10703a3b..54b3d473 100644
--- a/test-support/Cargo.toml
+++ b/test-support/Cargo.toml
@@ -33,4 +33,4 @@ pretty_assertions = "1.4.0"
 rand = "0.8.5"
 base64 = "0.22.1"
 querystrong = "0.3.0"
-test-harness = "0.2.0"
+test-harness = "0.3.0"